Any of several yellowish-red azo dyes, some of which are used as food dyes or in cytology.

A tree of the species Acer rubrum

A variety of apple which is red in color and has a mild sweet flavour.

A member of any of several organizations known as Red Guards or Red Guard.

plural of red guard

(colloquial) demodectic mange

A deciduous shrub native to west coast of North America growing to 8-foot tall, Vaccinium parvifolium. / The edible red to blue-black berry of this plant.

A large historical square in central Moscow.

A signal or process with a frequency spectrum such that the spectral energy density is proportional to the reciprocal of the frequency squared (1/f²).

(historical) A former Marxist-Leninist militant group based in Italy.